English verb conjugation
OUGHT TO PERTURB

Regular verb: perturb - perturbed - perturbed

Affirmation

Simple form	V-ing form
I ought to perturb you ought to perturb he ought to perturb we ought to perturb you ought to perturb they ought to perturb	I ought to be perturbing you ought to be perturbing he ought to be perturbing we ought to be perturbing you ought to be perturbing they ought to be perturbing
Perfect	V-ing perfect
I ought to have perturbed you ought to have perturbed he ought to have perturbed we ought to have perturbed you ought to have perturbed they ought to have perturbed	I ought to have been perturbing you ought to have been perturbing he ought to have been perturbing we ought to have been perturbing you ought to have been perturbing they ought to have been perturbing

Negation

Simple form	V-ing form
I oughtn't to perturb you oughtn't to perturb he oughtn't to perturb we oughtn't to perturb you oughtn't to perturb they oughtn't to perturb	I oughtn't to be perturbing you oughtn't to be perturbing he oughtn't to be perturbing we oughtn't to be perturbing you oughtn't to be perturbing they oughtn't to be perturbing
Perfect	V-ing perfect
I oughtn't to have perturbed you oughtn't to have perturbed he oughtn't to have perturbed we oughtn't to have perturbed you oughtn't to have perturbed they oughtn't to have perturbed	I oughtn't to have been perturbing you oughtn't to have been perturbing he oughtn't to have been perturbing we oughtn't to have been perturbing you oughtn't to have been perturbing they oughtn't to have been perturbing

Interrogative form

Simple form	V-ing form
ought to I perturb? ought to you perturb? ought to he perturb? ought to we perturb? ought to you perturb? ought to they perturb?	ought to I be perturbing? ought to you be perturbing? ought to he be perturbing? ought to we be perturbing? ought to you be perturbing? ought to they be perturbing?
Perfect	V-ing perfect
ought to I have perturbed? ought to you have perturbed? ought to he have perturbed? ought to we have perturbed? ought to you have perturbed? ought to they have perturbed?	ought to I have been perturbing? ought to you have been perturbing? ought to he have been perturbing? ought to we have been perturbing? ought to you have been perturbing? ought to they have been perturbing?

Interro-negative form

Simple form	V-ing form
oughtn't I to perturb? oughtn't you to perturb? oughtn't he to perturb? oughtn't we to perturb? oughtn't you to perturb? oughtn't they to perturb?	oughtn't I to be perturbing? oughtn't you to be perturbing? oughtn't he to be perturbing? oughtn't we to be perturbing? oughtn't you to be perturbing? oughtn't they to be perturbing?
Perfect	V-ing perfect
oughtn't I to have perturbed? oughtn't you to have perturbed? oughtn't he to have perturbed? oughtn't we to have perturbed? oughtn't you to have perturbed? oughtn't they to have perturbed?	oughtn't I to have been perturbing? oughtn't you to have been perturbing? oughtn't he to have been perturbing? oughtn't we to have been perturbing? oughtn't you to have been perturbing? oughtn't they to have been perturbing?